I hope Yuki Hayashi will compose for Hero Academia although he seems very busy with BokuMachi movie, NHK TV Drama "Asa ga Kita", Kiznaiver and recently new season of Haikyu. Also, Kiznaiver is confirmed for Spring but not impossible to compose for 2 shows in one season.
Second choice : Keiji Inai follows Kōhei Horikoshi on Twitter, maybe him...

I tweeted him about it back in December but I never got a reply from him.

Maybe we will get something like Bodacious Space Pirates Complete Box (also Starchild like "K") - music from both TV series and movie.
In Return of Kings was also used music from 1st series and movie so we don´t know how much music Endo composed for second season...or maybe there is some info on Jasrac.

__________________“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.”― H.P. Lovecraft

I was curious why Suehiro is following this site on his twitter. I am so glad that my favorite tv drama composer is scoring some animes again.
Music in pv has little bit "Oldfield´s tubular bells" feeling and was interesting.

Thanks nextday!

__________________“The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.”― H.P. Lovecraft